Bench-vise.



PATENTED MAY 2, 1905.

R. I. SGHLOSSER.

BENCH VISE. l

APPLICATION FILED JUNE 27, 1904.

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Inventor, W

Httomegs rvgme'sse NITED TES Patented May 2, 1905.

PATENT OFFICE.

ROBERT JAMES SOHLOSSER, OF VVAli-REN, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO HENRY R. FISHER, OF WARREN, PENNSYLVANIA.

BENCH-VISE.

SPECIFICATION forming part of Letters Patent No. 788,604, dated May 2, 1905.

Application filed June 27, 1904. Serial No. 214,411.

To Lb whom it may concern.-

Be it known that I, ROBERT J AMns SOIILOS- sue, a citizen of the United States, residing at Warren, in the county of Warren and State of 5 Pennsylvania, have invented a new and useful Bench-Vise, of which the following is a specification.

This invention relates generally to vises, and particularly to that class known as swivel- I vises.

The object of the invention is to present a simply-constructed and thoroughly-effective form of vise in which the stock is free to rotate upon its base so long as no strains are ap- I plied to the jaws and which will instantly and firmly be locked against rotation when the jaws are clamped about an object.

With the above and other objects in view, as will appear as the nature of the invention is better understood, the same consists in the novel construction and combination of parts of a vise, as will be hereinafter fully described and claimed.

In the accompanying drawings, forming a 5 part of this specification, and in which like charactersof reference indicate corresponding parts, there is illustrated one form of embodiment of the invention capable of carrying the same into practical operation, it being un- 3 derstood that the elements therein exhibited may be varied or changed as to shape, proportion, and exact manner of assemblage without departing from the spirit thereof, and in these drawings Figure 1 is a view in elevation, partly in section, of a vise constructed in accordance with the presentinvention. Fig. 2 is avertical transverse sectional view taken on the line 2 2, Fig. 1, and looking in the direction of the 4 arrow thereon. Fig. 3 is a view in plan of the base and the stock-locking element. Fig. 4 is a perspective detail view of the vise-nut. Fig. 5 is a perspective detail view of the stocklocking element.

Referring to the drawings, 10 designates the base of the vise, which is provided with suitable means for attachment to a support, in this instance perforated ears or lugs 11, through which pass bolts 12 for holding the vise upon a bench, (indicated at 13.) The base 5 is provided with an upstanding annular flange 14E, constituting a guide which is engaged by a socket 16, integral with the stock 15 of the vise,the stock 15 being provided, as usual,with

a longitudinal orifice to receive the shank 1.7 of the movable jaw 19. The fixed jaw 18 is preferably formed integral with the stock 15, and the movable jaw 19 is preferably formed integral with the shank 17. The shank is in this instance shown as rectangular in crosssection and is made hollow, as usual, to receive the o 'ierating-screw 20, provided at its outer end with an oriliced head to receive the handle or lever 21.

The guide lei is provided with a circumferential channel or groove 22, into which projects the inner end of a set-screw 23, tapped through the socket 16 and operating to prevent a vertical movement of the stock, but leaving the same free to rotate upon the base. Disposed for rotation within a chamber formed by the guide 14 and socket 16 is an expansible clamping element 24:, having an opening 25 extending therethrough, one end 26 of which is wedge-shaped and mergesinto a cleft 28, ex- 7 5 tending through one side of the said element. On the opposite side of the element and in alinement with the cleft 28 is another cleft 29, which extends a sufficient distance into the Wall of the opening to render the two jaws formed by the cleft 28 resilient, and thus readily expansible, but without weakening the vise or rendering it liable to break under strain. The opening 25 is engaged by an extension 32, carried by the operating-nut 31, 5 the extension being provided with a wedgeshaped nose 33 to engage the wedge-shaped walls of the said opening. This extension is designed to fit snugly within the opening, so there will be no lost motion and no tilting 9 movement, which would cause the threads of the nut to bind upon the threads of the opperating-screw, and thus have a tendency to strip and destroy the latter, and when moved by the stress of the operating-screw the nose 33 rides against the wedge-shaped walls of the opening and the apex of the nose enters the cleft 28, thus spreading the jaws of the clamping element laterally and causing its periphery tightly to bind against the inner wall of the guide, and thus positively lock the stop against rotation. It will be readily seen that when the screw 20 is turned to cause the jaws to clamp an object that the longitudinal draft upon the screw will move the operatingnut toward the movable jaw, and this will force the nose of the extension against the wedge-shaped walls of the opening 25 and expand the clamping element in the manner described and that upon the reverse movement of the screw the thrust thereof will return the operating-nut to its normal position, and thus allow the jaws of the clamping element to resume their normal position, whereupon the stock will be free to be rotated upon its base.

The upper and lower ends of the operatingnut are so disposed with relation to the upper wall of the shank-opening and the upper face of the base as to prevent any rocking movement, which would tend not only to destroy the threads of the screw, but also prevent the screw from being operated to exert excessive power upon the movable jaw, so that a vise provided with the improvements of this invention will be as thoroughly effective and durable in use as one constructed upon the ordinary lines. In order, further, positively to hold the clamping element against lifting or tilting under strains to which it will be applied, the socket is provided with a circumferential inward projecting flange 3A, which overlaps the upper side of the clamping member, as clearly shown in Fig. 1, and thus under all conditions of use maintains the clamping member in fixed parallel relation with regard to the operating-screw.

Having thus fully described the invention, what is claimed is a 1. A vise having an expansible stock-clamping element, means actuated by the operatingscrew to expand the said element, and means for holding the clamping element in fixed parallel relation with the screw.

2. A vise having an expansible stock-clamping element, a nut movable by the operatingscrew to expand the clamping element, and means for holding the clamping element in fixed parallel relation with the screw.

3. A vise having an expansible stock-clamping element provided with a wedge-shaped orifice, an operating-nut having a wedgeshaped extension substantially coextensive with and disposed within the orifice, and means for holding the clamping element against tilting movement.

4. A vise having an expansible stock-clamping element provided with resilient jaws, a chamber for housing the said element, and a nut movable by an operating-screw to expand the jaws into contact with the walls of the chamber.

5. A vise having an expansible stock-clamping element provided with resilient jaws and a wedge-shaped opening, an operating-nut having a wedge-shaped extension to engage the opening, the screw-engaging nut, and means for holding the clamping element and screw in fixed parallel relation to each other.

6. Avise having an expansible stock-clamping element provided with a cleft and with a wedge-shaped opening having its apex merged into the cleft, and an operating-nut having a wedge shaped nose to engage the wedgeshaped portion of the opening.

7. A vise having a longitudinally-movable expansion element, and a stock-clamping element actuated thereby having jaws expansible in a direction transverse to the movement of the expansion element.

8. A vise having a horizontal rotatable stock clamping element provided with a wedge-shaped opening and with expansible jaws, a base provided with a circular guide with which the said element is disposed, a stock having a socket inclosing the clamping element, a nut having a wedge-shaped extension engaging the opening, and an operatingscrew carried by the movable jaw for imparting longitudinal movement to the nut to effect expansion of the jaws.

9. A vise having an expansible stock-clamping element comprising a disk having a radial cleft, and wedge-shaped opening the apex of which merges into the cleft, and an operatingscrew having a wedge-shaped extension to engage the opening.

10. A vise having a stock-clamping element comprising a disk having an opening one wall of which is wedge-shaped, and provided witha radial cleft communicating with the apex of the wedge-opening and with a cleft opposite the first-named cleft and extending partly through the wall of the element, and an opcrating-nut having an extension to engage the opening and provided with a wedge-shaped nose to effect expansion of the said element.

11. In a vise, a base member, a stock mounted for rotation upon said base member and carrying the fixed jaw portion, a slide movable through said stock and carrying the opposing and movable jaw portion, a clamp member provided with a central aperture and with a cleft through one side communicating with said apertures a screw mounted for rotation through said slide member, a nut engaging said screw and projecting at one side into the aperture in said clamp member, and means whereby the applying of the strains between said jaws will cause the expansion ofsaid clamp member to lock said stock from rotation upon said base member.

12. In a vise, a base member having an annular guide a stock bearing upon said base and rotative upon said guide and carrying the fixed vise-jaw and provided with a transverse aperture, a hollow slide movably engaging said stock-aperture and carrying the opposing and vesse movable jaw portion, a clamping member mounted for rotation within said annular baseguide and havinga central aperture and provided with a cleft through one side communicating with said aperture, a screw mounted for rotation in said slide member, and a nut engaging said screw and projecting at one side into the aperture in said clamping member and means whereby the applying of astrain upon an object between said jaw portions will cause said nut to expand said clamp member and lock the stock member and the parts carried thereby fast to the base member.

13. In a vise, a base member, a stock mounted for rotation upon said base member and carrying the fixed jaw portion, a slide movable through said stock and carrying the opposing movable jaw portion,converging at one end and with a cleftleading through one side and com munieating with the converging end of said aperture and a nut engaging said screw and projecting at one side into said aperture and provided with a wedge-shaped side conforming to said converging end, whereby when the strains are applied to said jaw members said clamp member will be expanded and said stock locked to said base. 1

14. In a vise, a stationary jaw provided on its under side with a socket, a base provided with a guide-flange, the socket and flange forming a chamber, means for holding the socket and guide-flange in operative relation, an expansible clamping element disposed within the chamber, and provided with a wedge-shaped orifice, means on the socket for preventing tiltingmovement of the clamping element, an operating-nut, having a wedgeshaped' extension engaging the orifice, a movable jaw eooperatively combined with the stationary jaw, and an operating-screw carried by the movable jaw and engaging the operating-nut.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

ROBERT JAMES SOHLOSSER.

Witnesses:

EDWARD LINDSEY, EARLE MACDONALD. 

